JPS6144396Y2 - - Google Patents

Description

【考案の詳細な説明】 本考案はドアのマイクロ波漏洩防止構造を改良
した電子レンジに関する。[Detailed Description of the Invention] The present invention relates to a microwave oven with an improved microwave leakage prevention structure of the door.

第１図は最近提案された電子レンジを示し、１
は外装、２は該外装内に配置されマイクロ波が供
給される加熱室、３は該加熱室の前面開口を開閉
するドア、４は閉ドア時に上記加熱室２の前面板
５に対向するドア周縁６に配置され上記前面板５
側に開口７を有するマイクロ波減衰用凹部、即ち
チヨーク部、８は該チヨーク部の開口７を閉塞す
るための誘電体カバー、９は該カバーの外周端に
形成された凹部、１０は平板状のマイクロ波吸収
体、即ちフエライト、１１は弾力性を有するＬ型
金属板である。そして、上記フエライト１０は金
属板１１のＡ部が裏面に位置するようにして金属
板１１と共に上記カバー８の凹部９に圧入装着さ
れている。又、上記金属板１１のＢ部は上記チヨ
ーク部４の側壁４′に弾性接触している。 Figure 1 shows a recently proposed microwave oven.
2 is an exterior, 2 is a heating chamber arranged inside the exterior and supplied with microwaves, 3 is a door that opens and closes the front opening of the heating chamber, and 4 is a door that faces the front plate 5 of the heating chamber 2 when the door is closed. The front plate 5 is arranged on the peripheral edge 6.
A microwave attenuation recess having an opening 7 on the side, that is, a chiyoke part, 8 a dielectric cover for closing the opening 7 of the chiyoke part, 9 a recess formed at the outer peripheral edge of the cover, and 10 a flat plate shape. The microwave absorber, ie, ferrite, 11 is an L-shaped metal plate having elasticity. The ferrite 10 is press-fitted together with the metal plate 11 into the recess 9 of the cover 8 so that part A of the metal plate 11 is located on the back surface. Also, portion B of the metal plate 11 is in elastic contact with the side wall 4' of the yoke portion 4.

従つて、フエライト１０は螺子などを使用せず
に装着できるから、構造が簡単となる。更に、フ
エライト１０は裏面に金属板１１が配置されそし
て実質的にチヨーク部４外に位置せしめられてお
り、よつてフエライト１０はチヨーク部４で充分
に減衰されずに漏洩してきたマイクロ波に対して
はかなり高いマイクロ波吸収率を示す。尚、上記
金属板１１はカバー８の補強効果をも併せ持つて
いる。 Therefore, since the ferrite 10 can be installed without using screws or the like, the structure becomes simple. Furthermore, the ferrite 10 has a metal plate 11 disposed on its back surface and is positioned substantially outside the yoke portion 4, so that the ferrite 10 protects against microwaves leaked without being sufficiently attenuated in the yoke portion 4. shows a fairly high microwave absorption rate. The metal plate 11 also has the effect of reinforcing the cover 8.

しかるに、上記フエライト１０と前面板５との
間には上記カバー８の凹部右壁８′が介在してい
るから、フエライト１０は少なくとも凹部右壁
８′の厚み分だけ前面板５から離間し、従つてフ
エライト１０の量を増やさない限り今一歩フエラ
イト１０のマイクロ波吸収率が向上しないと云う
欠点がある。 However, since the recessed right wall 8' of the cover 8 is interposed between the ferrite 10 and the front plate 5, the ferrite 10 is spaced apart from the front plate 5 by at least the thickness of the recessed right wall 8'. Therefore, there is a drawback that the microwave absorption rate of ferrite 10 cannot be improved any further unless the amount of ferrite 10 is increased.

本考案は斯る点に鑑みてなされたもので、以下
本考案実施例電子レンジを第２図及び第３図を参
照して詳述する。尚、第２図及び第３図におい
て、第１図と同一部分には同一符号を記してその
説明を省略する。 The present invention has been devised in view of these points, and a microwave oven according to an embodiment of the present invention will be described in detail below with reference to FIGS. 2 and 3. In FIGS. 2 and 3, the same parts as in FIG. 1 are denoted by the same reference numerals, and the explanation thereof will be omitted.

１２は上記カバー８の外周端にて断面Ｌ型にし
てチヨーク部４側へ突出すべく形成されたＬ型
片、１３，１３…は該Ｌ型片の底壁１２′に各々
所定間隔を有して形成された複数の凹部、１４，
１４…は上記フエライト１０の下端に一体成形さ
れ上記凹部１３，１３…に圧入される複数の逆Ｌ
型突出片、１５，１５…は上記フエライト１０の
左壁、即ち裏面の上部に各々所定間隔を有して一
体成形され、上記Ｌ型片１２上端に係合する複数
の逆Ｌ型係合片、１６，１６…は上記金属板１１
のＡ部に穿設された複数の開口で、該開口には上
記係合片１５，１５…が挿通される。 Reference numeral 12 denotes an L-shaped piece formed at the outer peripheral end of the cover 8 to have an L-shaped cross section and protrude toward the front wall 4, and 13, 13, . a plurality of recesses formed by
14... are a plurality of inverted L's integrally molded on the lower end of the ferrite 10 and press-fitted into the recesses 13, 13...
The mold projecting pieces 15, 15, . . . are a plurality of inverted L-shaped engagement pieces that are integrally molded at a predetermined interval from each other on the upper part of the left wall, that is, the back surface, of the ferrite 10, and that engage with the upper end of the L-shaped piece 12. , 16, 16... are the metal plates 11
A plurality of openings are formed in the A section of the holder, and the engaging pieces 15, 15, . . . are inserted through the openings.

而して、フエライト１０をカバー８に装着する
場合は、まずフエライト１０の係合片１５，１５
…が金属板１１の開口１６，１６…に挿通するよ
うにして、金属板１１をフエライト１０の裏面側
に位置せしめる。そして、この状態を保持して、
フエライト１０の突出片１４，１４…を凹部１
３，１３…に圧入し、且つ係合片１５，１５…を
Ｌ型片１２上端に係合せしめれば、フエライト１
０はカバー８の外周端に装着される。この時、金
属板１１のＡ部はカバー８のＬ型片１２の立壁と
フエライト１０とで挟持され、更に、フエライト
１０の右壁、即ち表面は前面板５側に露出し、よ
つて前面板５に近接できる。 Therefore, when attaching the ferrite 10 to the cover 8, first attach the engaging pieces 15, 15 of the ferrite 10.
The metal plate 11 is positioned on the back side of the ferrite 10 so that the metal plate 11 is inserted into the openings 16, 16, . . . of the metal plate 11. And hold this state,
The protruding pieces 14, 14... of the ferrite 10 are placed in the recess 1.
3, 13... and engage the engaging pieces 15, 15... with the upper end of the L-shaped piece 12, the ferrite 1
0 is attached to the outer peripheral end of the cover 8. At this time, part A of the metal plate 11 is sandwiched between the vertical wall of the L-shaped piece 12 of the cover 8 and the ferrite 10, and furthermore, the right wall, that is, the surface of the ferrite 10 is exposed to the front plate 5 side, so that the front plate You can get close to 5.

以上の説明から明らかな如く、本考案によれ
ば、マイクロ波吸収体は誘電体カバーの外周端に
係合装着されるから、螺子などを使用する必要が
なく、従つて構造が簡単となり、更に、マイクロ
波吸収体の裏面には金属板が配置されると共にマ
イクロ波吸収体の表面は前面板側に露出している
から前面板に近接でき、よつてマイクロ波吸収体
の量を増加する必要もなくマイクロ波吸収体のマ
イクロ波吸収率を充分に向上できる。 As is clear from the above explanation, according to the present invention, the microwave absorber is fitted and fitted to the outer peripheral edge of the dielectric cover, so there is no need to use screws, etc., and the structure is therefore simple. , a metal plate is arranged on the back side of the microwave absorber, and the surface of the microwave absorber is exposed to the front plate side, so it can be close to the front plate, and therefore it is necessary to increase the amount of the microwave absorber. Therefore, the microwave absorption rate of the microwave absorber can be sufficiently improved.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は最近提案された電子レンジの要部断面
図、第２図は本考案実施例電子レンジの要部断面
図、第３図は同要部分解斜視図である。 ２……加熱室、３……ドア、４……チヨーク
部、８……誘電体カバー、１０……フエライト、
１１……金属板。 FIG. 1 is a sectional view of a main part of a recently proposed microwave oven, FIG. 2 is a sectional view of a main part of a microwave oven according to an embodiment of the present invention, and FIG. 3 is an exploded perspective view of the main part. 2... Heating chamber, 3... Door, 4... Chiyoke part, 8... Dielectric cover, 10... Ferrite,
11...Metal plate.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] マイクロ波が供給される加熱室、該加熱室の前
面開口を開閉するドア、閉ドア時に上記加熱室の
前面板に対向するドア周縁に配置され上記前面板
側に開口を有するマイクロ波減衰用凹部、該凹部
の開口を閉塞するための誘電体カバー、該カバー
の外周端に係合装着され表面が上記加熱室の前面
板側に露出したマイクロ波吸収体、該マイクロ波
吸収体の裏面側に位置するようにして斯るマイク
ロ波吸収体と上記カバーの外周端にて挟持された
金属板を備えたことを特徴とする電子レンジ。 A heating chamber to which microwaves are supplied, a door that opens and closes the front opening of the heating chamber, and a microwave attenuation recess that is arranged on the periphery of the door facing the front plate of the heating chamber when the door is closed and has an opening on the front plate side. , a dielectric cover for closing the opening of the recess, a microwave absorber that is engaged with and attached to the outer peripheral edge of the cover and whose surface is exposed on the front plate side of the heating chamber, and a microwave absorber on the back side of the microwave absorber. A microwave oven comprising a metal plate sandwiched between the microwave absorber and the outer peripheral edge of the cover so as to be positioned.